It was narrated that 'Aishah said:
"The Messenger of Allah (ﷺ) used to perform Ghusl from a vessel which was the size of a Faraq [1] and he and I used to perform Ghusl using a single vessel."[1] Sixteen Ratls. (ES)
English reference (ES): Vol. 1, Book 1, Hadith 229 (ES)
Arabic reference (ES): Book 1, Hadith 230 (ES)